55005005979 has 96 divisors (see below), whose sum is σ = 105082458624. Its totient is φ = 26842199040.

The previous prime is 55005005959. The next prime is 55005005989. The reversal of 55005005979 is 97950050055.

55005005979 is a `hidden beast` number, since 5 + 5 + 0 + 0 + 50 + 0 + 597 + 9 = 666.

It is not a de Polignac number, because 55005005979 - 2⁸ = 55005005723 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55005005959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 6628557 + ... + 6636849.

It is an arithmetic number, because the mean of its divisors is an integer number (1094608944).

Almost surely, 2^55005005979 is an apocalyptic number.

55005005979 is a deficient number, since it is larger than the sum of its proper divisors (50077452645).

55005005979 is a wasteful number, since it uses less digits than its factorization.

55005005979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8897 (or 8894 counting only the distinct ones).

The product of its (nonzero) digits is 354375, while the sum is 45.

The spelling of 55005005979 in words is "fifty-five billion, five million, five thousand, nine hundred seventy-nine".